基于性态的磁流变智能隔震结构设计研究

Performance-based seismic design of a smart isolation structure with magnetorheological damper

针对磁流变智能隔震结构的减震特点,提出了一种基于性态设计的抗震设计方法。该设计方法对结构在不同烈度下地震反应,设定了不同的性态设计水平和相应的性态设计指标,并给出了完整的设计过程。设计算例证明,按此设计过程设计出的磁流变智能隔震结构,满足给定各性态设计水平下对不同地震反应下的设计指标限值要求,设计结果达到了安全合理的抗震设计要求,因而证明该设计方法是可行和有效的。

A performance-based seismic design for a smart isolation structure with magnetorheological (MR) damper was given. The design method offered different performance level and performance index for structural seismic responses under different earquake intensity. Complex design processes also were presented. Design example proved the design process for a smart isolation structure with magnetorheological damper met the limited value requirements of performanc index under different performance levels and the design results met earquake-resistance design requirements. So the proposed design method is feasible and effective.